Free loft insulation is available through the Energy Company Obligation (ECO4) scheme in 2026
The Energy Company Obligation (ECO4) scheme, overseen by Ofgem, provides free loft insulation to eligible UK households. In 2026, the scheme requires energy suppliers to install loft insulation to a minimum depth of 270mm (Ofgem ECO4 Guidance, 2026). The current phase runs until March 2026, with potential extensions announced via GOV.UK updates. Eligibility is not universal. It is based on means-testing or specific health and property criteria.
You qualify for free loft insulation if you receive certain benefits or live in a low-income household
Eligibility is primarily determined by receipt of one of the following benefits: Income Support, Jobseeker’s Allowance, Pension Credit, Universal Credit, or Child Tax Credit (GOV.UK ECO4 eligibility page, 2026). You may also qualify if your household income is below £31,000 and you live in a low-energy-efficiency property (DESNZ ECO4 guidance, 2026). Homeowners and private tenants (with landlord permission) are eligible. Social housing tenants are generally excluded. The property must have an Energy Performance Certificate (EPC) rating of D, E, F, or G (Ofgem ECO4 rules, 2026).
The cost of free loft insulation is zero for eligible households
The full cost of materials and installation is covered by the energy supplier under ECO4. No direct payment is required from the homeowner. Typical installation value for a three-bedroom semi-detached house is between £500 and £1,000 (Energy Saving Trust estimates, 2026). The homeowner pays nothing. The energy supplier recovers costs through a levy on all energy bills. No hidden fees or repayment obligations exist for the householder.
Quick numbers typical savings, installation time, and lifespan
| Metric | Value | Source |
|---|---|---|
| Annual heating bill saving | £150–£300 | Energy Saving Trust, 2026 |
| Installation time | 2–4 hours for a standard loft | TrustMark, 2026 |
| Lifespan of mineral wool insulation | 40+ years | British Board of Agrément, 2026 |
| Minimum depth installed | 270mm | Ofgem ECO4, 2026 |
How to apply for free loft insulation in 2026, the step-by-step process
Step 1: Check your benefit or income eligibility using the ECO4 eligibility checker on GOV.UK. Step 2: Contact your energy supplier or an approved installer directly. Major suppliers include British Gas, EDF, E.ON, Octopus Energy, and Scottish Power. Step 3: The supplier arranges a free home assessment to confirm property suitability and insulation depth. Step 4: Installation is scheduled and completed within 2–4 weeks of approval. No DIY or upfront payment is required. The installer handles all paperwork. guide to finding an approved ECO4 installer near you
Free loft insulation eligibility also depends on your property type and current insulation level
The property must have an uninsulated or under-insulated loft with less than 270mm of existing insulation (Ofgem ECO4, 2026). Properties with cavity walls or solid walls are not excluded. Loft insulation remains the primary focus. Flats with a loft space may qualify. Maisonettes and bungalows are also eligible if they have a loft. Homes built before 2000 are more likely to have inadequate insulation (DESNZ housing stock data, 2026).
You must use an MCS-certified installer for free loft insulation under the ECO4 scheme
All installations must be carried out by an installer certified under the Microgeneration Certification Scheme (MCS) or equivalent (Ofgem ECO4 installer requirements, 2026). The installer must also be registered with TrustMark for consumer protection. To verify an installer, check the MCS register at mcscertified.com or TrustMark at trustmark.org.uk. Using an uncertified installer voids the ECO4 funding and may leave the householder liable for costs. how to verify an MCS-certified installer in your area
Free loft insulation eligibility is not affected by your energy supplier or location
You can apply through any energy supplier that is obligated under ECO4. This is true even if you are not a customer of that supplier. The scheme covers all regions of England, Scotland, and Wales. Northern Ireland has a separate scheme through NI Energy Advice. Rates and availability are uniform across the UK. Local installers may have waiting lists. No application deadline exists within the scheme’s current timeframe. Funding is allocated on a first-come, first-served basis.
Frequently Asked Questions
You qualify if you receive benefits like Income Support or Universal Credit, or have a household income below £31,000 and an EPC rating of D-G. Ofgem ECO4 rules confirm this.
Yes, the full cost of materials and installation is covered by your energy supplier through ECO4. You pay nothing, with no hidden fees, as per Energy Saving Trust estimates.
Loft insulation saves £150-£300 per year on heating bills, according to the Energy Saving Trust. Savings depend on your home size and current insulation level.
Installation typically takes 2-4 hours for a standard three-bedroom semi-detached house, as stated by Energy Saving Trust. The process is quick and non-disruptive.
Social housing tenants are generally excluded from ECO4 free loft insulation. Homeowners and private tenants with landlord permission are eligible, per Ofgem rules.
